Global timing functions - setTimeout

timing.js

/*
  Working with Node.js asynchronously through the use of timing functions.
  The timing functions are:- setTimeout, clearTimeout, setInterval, and clearInterval
   - setTimeout will create a delay of a certain time and then invoke a callback function
*/
var waitTime = 3000;

console.log("wait for it");

setTimeout(function(){
  //after 3 seconds, we should see the output 'done' and the application exits
   console.log("done");
}, waitTime);